Cloth Sim-Same value but different results, why?
Check the scale of your model. For realistic simulations you really need to fit to real-world scales - so it should be, say, 1m top to bottom. Don't forget to 'Apply Scale' on your mesh (otherwise it will still behave at its old size). I'm not familiar with the 2.8x cloth settings (I'm more used to 2.79) but 5kg vertex mass would seem way too high. If my assumptions are correct that is the effective weight of each vertex in the mesh. So if the whole garment would normally weigh 500g, if there are 500 vertices each should be 1g, not 5kg! Set the scale and mass correct for ‘real world’ physics and re-run the simulation.